因此,我有一個報告應用程序需要一段時間來生成報告,並且用戶抱怨報告沒有運行的視覺反饋。試圖在Java中創建一個模式「生成報告」對話框
我已經寫了一個小型的類,它將成爲阻止用戶做任何事情的模態對話框,在報告實際完成之前用「生成報告....」這個短語展示自己,然後它會隱藏自己並定期使用會返回。
我遇到的問題是出現對話框,文本出現,但問題是傳遞給它的runnable不運行。
這是繁忙的對話框:
package com.company.utilities.busydialog;
import java.awt.BorderLayout;
import java.awt.Cursor;
import javax.swing.JDialog;
import javax.swing.JLabel;
public class BusyDialog extends JDialog {
private Runnable r;
public BusyDialog (String Message, Runnable r) {
super();
this.r = r;
this.setModal(true);
this.setDefaultCloseOperation(JDialog.DO_NOTHING_ON_CLOSE);
this.setLayout(new BorderLayout());
this.getContentPane().add(new JLabel(Message));
this.pack();
}
public void show() {
this.setVisible(true);
this.setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
System.out.println("running report");
r.run();
this.setCursor(Cursor.getDefaultCursor());
this.setVisible(false);
}
}
這裏是方法,我把它叫做:
private void dailyUsageSubmitButtonActionPerformed(java.awt.event.ActionEvent evt) {
final Date date = this.dailyUsagePicker.getDate();
final ReportController c = this.controller;
final ProductionHRClientView view = this;
BusyDialog dialog = new BusyDialog("Generating report...", new Runnable() {
public void run() {
c.generateDailyUsageReport(date, view);
}
});
dialog.setResizable(false);
dialog.setLocation(700,400);
dialog.Show();
}
EDIT: I tried this http://stackoverflow.com/questions/4542580/how-to-make-a-modal-jdialog-execute-code-immediately-upon-being-shown
,並結束了與這個類BusyDialog:
package com.protocase.utilities.busydialog;
import java.awt.BorderLayout;
import java.awt.Cursor;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.JDialog;
import javax.swing.JLabel;
public class BusyDialog extends JDialog {
public BusyDialog(String Message, final Runnable r) {
super();
this.setModal(true);
this.setDefaultCloseOperation(JDialog.DO_NOTHING_ON_CLOSE);
this.setLayout(new BorderLayout());
this.getContentPane().add(new JLabel(Message));
this.pack();
this.addWindowListener(new WindowAdapter() {
@Override
public void windowOpened(WindowEvent e) {
super.windowOpened(e);
// do something
doBusy(r);
}
});
}
private final void doBusy(Runnable r) {
this.setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
r.run();
this.setCursor(Cursor.getDefaultCursor());
this.dispose();
}
}
但這也不能解決問題。
爲什麼不使用進度條? – cdeszaq
我仍然需要使它成爲模態並使其運行線程。 – davidahines